UBUNTU-CVE-2023-46835

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Source
https://ubuntu.com/security/CVE-2023-46835
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-46835.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-46835
Upstream
Published
2024-01-05T17:15:00Z
Modified
2025-10-24T05:02:19Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The current setup of the quarantine page tables assumes that the quarantine domain (domio) has been initialized with an address width of DEFAULTDOMAINADDRESSWIDTH (48) and hence 4 page table levels. However domio being a PV domain gets the AMD-Vi IOMMU page tables levels based on the maximum (hot pluggable) RAM address, and hence on systems with no RAM above the 512GB mark only 3 page-table levels are configured in the IOMMU. On systems without RAM above the 512GB boundary amdiommuquarantineinit() will setup page tables for the scratch page with 4 levels, while the IOMMU will be configured to use 3 levels only, resulting in the last page table directory (PDE) effectively becoming a page table entry (PTE), and hence a device in quarantine mode gaining write access to the page destined to be a PDE. Due to this page table level mismatch, the sink page the device gets read/write access to is no longer cleared between device assignment, possibly leading to data leaks.

References

Affected packages

Ubuntu:16.04:LTS

xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.6.5-0ubuntu1.4?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.5.1-0ubuntu1
4.5.1-0ubuntu2
4.6.0-1ubuntu1
4.6.0-1ubuntu2
4.6.0-1ubuntu4
4.6.0-1ubuntu4.1
4.6.0-1ubuntu4.2
4.6.0-1ubuntu4.3
4.6.5-0ubuntu1
4.6.5-0ubuntu1.1
4.6.5-0ubuntu1.2
4.6.5-0ubuntu1.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "libxen-4.6"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "libxenstore3.0"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.4-amd64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.4-arm64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.4-armhf"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.5-amd64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.5-arm64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.5-armhf"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.6-amd64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.6-arm64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-hypervisor-4.6-armhf"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-utils-4.6"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.6.5-0ubuntu1.4",
            "binary_name": "xenstore-utils"
        }
    ]
}

Ubuntu:18.04:LTS

xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.9.2-0ubuntu1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.9.0-0ubuntu3
4.9.0-0ubuntu4
4.9.2-0ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "libxen-4.9"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "libxenstore3.0"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.6-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.6-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.6-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.7-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.7-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.7-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.8-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.8-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.8-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.9-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.9-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-hypervisor-4.9-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-utils-4.9"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.9.2-0ubuntu1",
            "binary_name": "xenstore-utils"
        }
    ]
}

Ubuntu:20.04:LTS

xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.11.3+24-g14b62ab3e5-1ubuntu2.3?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.9.2-0ubuntu2
4.9.2-0ubuntu6
4.9.2-0ubuntu7
4.11.3+24-g14b62ab3e5-1ubuntu1
4.11.3+24-g14b62ab3e5-1ubuntu2
4.11.3+24-g14b62ab3e5-1ubuntu2.2
4.11.3+24-g14b62ab3e5-1ubuntu2.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxencall1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxendevicemodel1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenevtchn1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenforeignmemory1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxengnttab1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenmisc4.11"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxenstore3.0"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxentoolcore1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "libxentoollog1"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.11-amd64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.11-arm64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.11-armhf"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.9-amd64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.9-arm64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-4.9-armhf"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-hypervisor-common"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-utils-4.11"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.11.3+24-g14b62ab3e5-1ubuntu2.3",
            "binary_name": "xenstore-utils"
        }
    ]
}

Ubuntu:22.04:LTS

xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.16.0-1~ubuntu2.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.11.4+24-gddaaccbbab-1ubuntu2
4.16.0-1~ubuntu2
4.16.0-1~ubuntu2.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxencall1"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxendevicemodel1"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxenevtchn1"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxenforeignmemory1"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxengnttab1"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxenhypfs1"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxenmisc4.16"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxenstore4"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxentoolcore1"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "libxentoollog1"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-hypervisor-4.16-amd64"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-hypervisor-4.16-arm64"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-hypervisor-4.16-armhf"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-hypervisor-common"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-utils-4.16"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.16.0-1~ubuntu2.1",
            "binary_name": "xenstore-utils"
        }
    ]
}

Ubuntu:24.04:LTS

xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.17.3+10-g091466ba55-1.1ubuntu3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.17.2-1
4.17.2+55-g0b56bed864-1
4.17.2+76-ge1f9cb16e2-1
4.17.2+76-ge1f9cb16e2-1ubuntu1
4.17.3+10-g091466ba55-1
4.17.3+10-g091466ba55-1.1ubuntu2
4.17.3+10-g091466ba55-1.1ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxencall1t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxendevicemodel1t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxenevtchn1t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxenforeignmemory1t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxengnttab1t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxenhypfs1t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxenmisc4.17t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxenstore4t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxentoolcore1t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "libxentoollog1t64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-hypervisor-4.17-amd64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-hypervisor-4.17-arm64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-hypervisor-4.17-armhf"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-hypervisor-common"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-system-armhf"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-utils-4.17"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.17.3+10-g091466ba55-1.1ubuntu3",
            "binary_name": "xenstore-utils"
        }
    ]
}

Ubuntu:25.04

xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.20.0-1ubuntu1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.17.3+10-g091466ba55-1.1ubuntu3
4.19.1-1ubuntu3
4.20.0-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxen-dev"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxencall1"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxendevicemodel1"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxenevtchn1"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxenforeignmemory1"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxengnttab1"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxenhypfs1"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxenmisc4.20"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxenstore4"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxentoolcore1"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "libxentoollog1"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "xen-hypervisor-4.20-amd64"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "xen-hypervisor-4.20-arm64"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "xen-hypervisor-common"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "xen-system-amd64"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "xen-system-arm64"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "xen-utils-4.20"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "xen-utils-common"
        },
        {
            "binary_version": "4.20.0-1ubuntu1",
            "binary_name": "xenstore-utils"
        }
    ]
}

Ubuntu:25.10

xen

Package

Name
xen
Purl
pkg:deb/ubuntu/xen@4.20.0+68-g35cb38b222-1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.20.0-1ubuntu1
4.20.0+68-g35cb38b222-1

Ecosystem specific 

{
    "binaries": [
        {
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